<template>

  <el-upload class="avatar-uploader" action="http://localhost:8848/dishes/upimg" :show-file-list="false"
    :on-success="handleAvatarSuccess">
    <!-- :before-upload="beforeAvatarUpload" -->
    <!-- <img v-if="imageUrl" :src="imageUrl" class="avatar"> -->
    <img v-if="haveImageUrl" :src="haveImageUrl" class="avatar" />
    <i v-else class="el-icon-plus avatar-uploader-icon"></i>
  </el-upload>

</template>

<style>
  .avatar-uploader .el-upload {
    border: 1px dashed #d9d9d9;
    border-radius: 6px;
    cursor: pointer;
    position: relative;
    overflow: hidden;
  }

  .avatar-uploader .el-upload:hover {
    border-color: #409EFF;
  }

  .avatar-uploader-icon {
    font-size: 28px;
    color: #8c939d;
    width: 178px;
    height: 178px;
    line-height: 178px;
    text-align: center;
  }

  .avatar {
    width: 178px;
    height: 178px;
    display: block;
    object-fit: cover;
  }
</style>

<script>
  export default {
    data() {
      return {
        imageUrl: ''
      };
    },
    props: ["stepindex","haveImageUrl"],
    methods: {
      handleAvatarSuccess(res, file) {
        //this.imageUrl = URL.createObjectURL(file.raw);
        this.imageUrl = res;
        console.log(URL.createObjectURL(file.raw))
        this.$emit('upImg', {
          urlImg: this.imageUrl,
          imgIndex: this.stepindex
        })
      },
      // beforeAvatarUpload(file) {
      //   const isJPG = file.type === 'image/jpeg';
      //   const isLt2M = file.size / 1024 / 1024 < 2;

      //   if (!isJPG) {
      //     this.$message.error('上传头像图片只能是 JPG 格式!');
      //   }
      //   if (!isLt2M) {
      //     this.$message.error('上传头像图片大小不能超过 2MB!');
      //   }
      //   return isJPG && isLt2M;
      // }
    },
    mounted(){
      this.imageUrl=this.haveImageUrl
    }
  }
</script>